Y ol o- S ol an o A Q MD

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ber 1 0, 2010 Reg . I I , R ule 2 .43 , P ag e 1 RULE 2.43 BIOMASS BOIL ERS Adopted (Nove mber 10, 2010)

IN DE X 100 GENERAL

10 1 PURPOS E 102 APPL I CABI L I TY 110 EXEMPTI ONS 200 DEF INITIONS

20 1 B I OM ASS 20 2 B I OM ASS F UE L ED B OI L ER ( B OI L ER) 203 BL OCK 24-HOU R AVERAGE 204 BRI TI SH THERMALUNI T (B TU) 205 CARBON MON OXI DE (CO) E MI SSI ONS 206 CURI

NG STARTUP 207 HEAT I

NPUT 208 HI GHER HEATI

NG VAL UE (HH V) 209 NI TROGEN OX I DE (NO x ) EMI SSI ONS 210 RATED HEAT I

NPUT 2 1 1 SH U T D O WN 212 STARTUP 2 1 3 U N IT 300 STANDARDS

301 EMI SSI ON L I MI TS 302 STARTUP/S HUTDO WN PR OVI SI ONS 30 3 CO NT I

NU OU S EM I SSI ONMO NI TO RI NGSYS TE M ( CEM S) 304 SOURCE TESTI

NG 40 0 AD M IN ISTR

AT IV E REQU IREM EN TS 4 0 1 C O M P LIA

N C E S C H E D U LE 402 CEMS OP ERATI NG AND MAI

NTENAN CE PL AN 500 REP ORTING AN D RECORDK EEPING 501 REPORTI

NG 502 RECORDKEEPI

NG 600 TES T METHO DS

601 GENERAL 602 NOx EMI SSI ON CONCENTRATI ONY ol o- S ol an o A Q MD

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ber 1 0, 2010 Reg . I I , R ule 2 .43 , P ag e 2 603 CO EMI SSI ON CONCENTRATI ON 604 STACK GAS OXYGEN 6 0 5 ST A CK

G A S V E L O CI T Y ( F L O W) 606 STACK GAS MOI STURE CONTENT 607 FUE LHHVY ol o- S ol an o A Q MD

Ado pted Nov em

ber 1 0, 2010 Reg . I I , R ule 2 .43 , P ag e 3 100 GENERAL 101 P URP OSE: The purpose o f t his rule is to lim it the emissions of ox ides of nit ro g e n(NO x) and

c arb on mon oxide (C O) fr om b iom a ss f ue le d b oil e rs . 102 AP P LICABILIT Y: The provisions of this rule a re a pplicable to boiler s and steam g ener ators with rated heat inputs of gr eate r than or e qual to 5 milli on BTU per hour and wh ic h c omb us t bi oma ss a s a fu e l. 110 EX EM P TIO NS: T h e p ro v i s i o n s o f t h i s ru l e s h al l n o tap p l y t o th e f o l l o wi n g: 110.1 Boilers, St e a mG e ne r a t o r s , a nd P r o c e s s he ater s: B oil e rs , s te am g e ne rator s, and proc ess heaters which a re subject to the provisions of District Rule 2.27 - I ndustrial, I nstitut ional, and Commercia l Boilers, Steam Gener ators, and Pr oc e ss H e a te rs . 110.2 Solid Waste Incinerat ors: Com bu sti on un its who se prim ary

purp os e is t o burn municipal solid waste. 110.3 Waste Heat

Rec overy Boiler s: Was te he a t re c ov e ry bo ile rs that are us e d to rec over se nsible heat fr om the ex h au s t of combustion turbines or unfir ed waste he at re cover

y boilers used to r ecove r sensible he at from the e x haust of any c omb us tio n e qu ipm e nt. 200 DEF INITIONS 201 BIO M ASS : Any org anic material not derive d from fossil fuels, such as ag ricultural crop r esidues, bar

k, la wn , ya r d and g arde n clippings, le aves, silvicultural re sidue, tree and br us h p ru nin g , w oo d a

nd wo od c hip s, and wo od wa ste , inc lud ing the se mate ri a ls when se p arated from other waste stre ams. Biomass doe s not include materia l contai n in g s e w a g e s lu d g e , in d u s tr ia l s lu d g e , me d ic a l w a s te , h a za r d o u s w a s te , or radioa ctive wa ste. 202 BIOMASS F UELED BO ILER (BOIL ER): Any combustion equipment desig ned to bur nb io ma s s to p r o d

u c e s te am, h e a t w a te r

o r o th e r f lu id s , an d

/o r p roduce e le c tr ic ity , in c lud ingbut no t li mit e d to bo ile rs and ste am g e ne ra

tor s. 203 BLOCK 24-HOUR AV ERAG E: the ari thm e tic ave ra g e of the ho ur ly NO x or C O emission rates of a unit as m easur ed over 24 one-hour periods, daily , from 12:00 AM to 11:59 PM , excluding per iods of sy stem calibration. 204 BRITIS H THE RMAL UN IT (BTU): The amount of heat re quired to ra ise theY ol o- S ol an o A Q MD

Ado pted Nov em

ber 1 0, 2010 Reg . I I , R ule 2 .43 , P ag e 4 temperature of one pound of water fr om 59 degre es Fa h re nheit to 60 deg ree s Fa hrenhe it at one atmosphere

. 205 CARBON MONOXIDE (C O) EMISSIO NS: Carb on mon oxide in t

he fl ue g a s. 206 CURING

STARTUP: A s tart

up wh ic h inclu de s h e a tin g the bo ile r at a prede termined rate and holdingthe temper ature at seve ral points t o al l o w for i n s u l a t i n g m a t e r i a l s t o c ur e i nth e b o i l e r r e f r a c t o r y. 207 HEA T IN P UT : The c hemical he at re lease d due to fuel combustion i n a unit, using the h i gh er h ea t i ng value of the fue l. This does not include the sensible he at of incoming c ombustion air. 208 HIGHER H E AT I NG VALUE (HHV): The total hea t liberated pe r mass of f

uel b urn ed(B T U p er

p o un d ), wh en fu el an d

dry ai r a ts t an d ar d

c o n d i t i o n s un d er go complete c ombustion and all resultant products a re broug ht to their standar d states a t st and ard

c on dit ion s.

x 209 NITROGEN OXIDE (NO ) EMISSIONS : The sum of ni tric ox ides and nitrog en 2 diox ide in the flue g as, collec tively expressed as nitrog en dioxi de (N O ). 210 RATED HEAT INPUT : The heat input capa city , in million B TU per hour, spec ified on the nameplate of the unit. I f the unit has bee n altere d or modified such that the m ax i m u m heat input is differe nt than the heat input capac ity specifie d on the name plate , th e ma ximumhe a t in put sh a ll b e c on sid e re d a s th e ra te d h e a t in

put. 211 SHUTDOWN: Th e pe ri od of time whe n fue l f

e e d is c ur ta ile d a nd the un it c oo ls down from it’s norma l operating tempe rature , to an ambient temper ature

. 212 S T AR T UP: The period of time that a unit is heate d to the norm al o p er ati ng te mpe ratur e , f

ro m a shutd ow n s tatus

. 213 UN IT : Any

biomass fueled boiler , as def ined in section 202. 300 STANDARDS 301 EM ISSI ON LIM ITS: The owner/ o p erator of a n aff ecte d unit shall li mit the emissions of that unit to l ess than the f ollowing, e x cluding startup/shutdown:

NOx CO 90 ppm, corre cted to 3% O 2 (block 24 hour a

vera g e) 400 ppm, corre cted to 3% O 2

(block 24 hour a

vera g e)Y ol o- S ol an o A Q MD

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ber 1 0, 2010 Reg . I I , R ule 2 .43 , P ag e 5 302 STARTUP/SHUTDOWN P ROVISIONS : T he e mis sio n li mit s o f s e c t i o n 3 01 sh a ll no t a pp ly duri ngsta

rt up /shutd ow n, pr ov ide d th e fo llo wi ngre qu ir e me nts are me t: 30 2. 1 A n or

ma l st art up sh a ll not e xce e d 24 hours in dur a tio n. A curi ngsta rt up sh a ll not exceed 96 hours in duration. 30 2. 2 A s hutdo wn

sh a ll n ot e xce e d 2 4 h ou

rs . 302.3 The freque ncy and duration of st artup/shutdown periods and their associated emissions shall be minim ized as much as tec hnologic ally fea sible. 303 CO NTINUOUS EMISS ION MONITORING SYSTEM (CEMS): The owner /operator of an a ffe cted unit shall install, calibrate, ma intain, and oper ate a Contin uo us Em iss ion

Mo nit or ingSy ste m ( CEM S) fo r m e asur ingNO x an d CO e mis sio n c on c e ntr a tio ns . 303.1 The CEMS shall comply with the requirem en ts specified in 40 Code of Fe dera l Reg ulations (CFR) Part 60, Appe ndix B, Spec ification 2 and Appendix F or other alternative methods approve d by the U.S. E PA a nd the Di str ic t. 304 S OU RCE TE S TI NG: The owne r/operator of an a ffe cted unit s u bject to the pr ov isi on s o f t

his ru le sh a ll p e rf

or m a Re lativ e Accuracy Tes t Aud it ( RA TA ) t o verify compli an ce wi t h 40 CFR Part 60, Appendix F at lea st once e very four ( 4) cale ndar qua

rters, in a ccor dance with a District-a pproved p r o to c o l a

n d th e p r o c e d

ures li st ed i n Ap pen di x F. 40 0 AD M IN ISTR

AT IV E REQU IREM EN TS 401 CO M P LIA NC E SC HED UL E: Th e ow ne r/ op e rator of an a ff e c te d unit su bje c t to the re quirements of this rule shall demonstrate f ull compliance with all provisions by J uly 1, 2011. 402 CE MS OP ERATING A ND MA INTENANCE (O&M) P LAN: The owner /operator of an a ffe cted unit shall submit an O&M Pl an for the C EMS to the Air Polluti on Control Office r (APCO) f or appr oval. The pla

n shall include: 402.1 The proc edure s for c ollecting and re cording r eq uired data and other information in a for

m approve d by

the APCO. 402.2 The pr o ce dures a nd schedule s for pre ventive and c orre ctive maintena nce perf o rm ed for

the purpose of

maintaining the CEMS i n proper operating condition.Y ol o- S ol an o A Q MD

Ado pted Nov em

ber 1 0, 2010 Reg . I I , R ule 2 .43 , P ag e 6 500 REP ORTING AN D RECORDK EEPING 501 RE PORT IN G: Al l re co rds required by this Rul e shall be ma intained on-site for a pe ri od of fi ve (5 ) ye ars and

ma de ava ila

ble to t he APC O u

po n r e qu e st. 502 RE CO RDKE EPIN G: The owner/oper ator of a n aff ecte d unit shall maintain an op e ratin g logfo r t

he un it that in c lud e s, on

a da ily ba sis : 50 2. 1 Th e a c tua l st art

up /shutd ow n ti me and

tot a l op e ra

tin g ho ur s; 502.2. Ty

pe and a mount of eac h biomass fuel burne d; 50 2. 3 Th e ex hau st g a s CO and NO x co nc e ntr a tio ns in p art s p e r m ill ion vo lum e (ppmv), cor

rec ted to 3% O2, for

block 24-hour a

vera g e. 600 TES T METHO DS 601 GENERAL: F or

the purp os e s o f t

his Rul e , th e fo llo wi ngte st m e tho ds (o r t he ir mos t rec ent appr oved ver sions) shall be used. Othe r alter native test m ethods that are approve d in writing by

the District and the E PA may also be used. 602 NOx EMISSI ON CONCENTRATION: N O x e mi s s io n c o n c e n tr a ti o n s s h all be deter mined in acc ordanc e with U.S. EPA Method 7. 603 CO EMISSI ON CONCENTRATION: CO emission co n ce ntrations shall be deter mined in acc ordanc e with U.S. EPA Method 10. 604 STACK GAS OXYGEN: The ox yg en content of the stack g as shall be dete rmined in acc ordanc e with U.S. EPA Method 3. 605 STACK GAS VELOCIT Y (F LOW): Velocity of the stac k g ases s hall be deter mined in acc ordanc e with U.S. EPA Method 2. 606 STACK GAS MOISTURE CONTE NT: Mo ist ur e c on te nt o f t

he sta c k g a se s sh a ll be dete rmined in ac corda nce w ith U.S. EP A Method 4. 607 F UEL HHV: The HHV of sol id fuels shall be determined i n acc ordanc e with ASTM E 711-87 or A STM D 2015-96.